'use strict'
const path = require('path')
const defaultSettings = require('./src/settings.js')

function resolve(dir) {
  return path.join(__dirname, dir)
}

const name = defaultSettings.title || 'vue Element Admin' // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following method:
// port = 9527 npm run dev OR npm run dev --port = 9527
const port = process.env.port || process.env.npm_config_port || 9527 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  publicPath: './',
  outputDir: 'dist',
  assetsDir: 'static',
  lintOnSave: process.env.NODE_ENV === 'development',
  productionSourceMap: false,
  pages: {
    index: {
      entry: 'src/main.js',
      template: 'public/index.html',
      filename: 'index.html',
      hash: true,
      chunks: ['chunk-vendors', 'chunk-common', 'index']
    },        
    webterm: {          
      entry: 'src/views/walle/webterm/main.js',          
      template: 'public/webterm.html',
      filename: 'webterm.html',
      hash: true,
      chunks: ['chunk-vendors', 'chunk-common', 'webterm']
    }
  },
  devServer: {
    port: port,
    open: true,
    overlay: {
      warnings: false,
      errors: true
    },
    proxy: {
      '/api': {
        target: 'http://172.16.167.252:5000',
        ws: false
      }, 
      '/socket.io': {
        target: 'http://172.16.167.252:5000',
        ws: true
      }
    },
    // before: require('./mock/mock-server.js')
  },
  configureWebpack: {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    name: name,
    resolve: {
      alias: {
        '@': resolve('src')
      }
    }
  },
  chainWebpack(config) {
    // 拷贝插件
    config.plugin('copy').tap(args => {
      args[0].push({
        from: path.resolve(__dirname, './static'),
        to: 'static',
        ignore: ['.*']
      })
      return args
    })
    // it can improve the speed of the first screen, it is recommended to turn on preload
    // config.plugin('preload').tap(() => [
    //   {
    //     rel: 'preload',
    //     // to ignore runtime.js
    //     // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
    //     fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
    //     include: 'initial'
    //   }
    // ])

    // when there are many pages, it will cause too many meaningless requests
    config.plugins.delete('prefetch')

    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    // set preserveWhitespace
    config.module
      .rule('vue')
      .use('vue-loader')
      .loader('vue-loader')
      .tap(options => {
        options.compilerOptions.preserveWhitespace = true
        return options
      })
      .end()

    config
      .when(process.env.NODE_ENV !== 'development',
        config => {
          config
            .plugin('ScriptExtHtmlWebpackPlugin')
            .after('html')
            .use('script-ext-html-webpack-plugin', [{
            // `runtime` must same as runtimeChunk name. default is `runtime`
              inline: /runtime\..*\.js$/
            }])
            .end()
          // config
          //   .optimization.splitChunks({
          //     chunks: 'all',
          //     cacheGroups: {
          //       libs: {
          //         name: 'chunk-libs',
          //         test: /[\\/]node_modules[\\/]/,
          //         priority: 10,
          //         chunks: 'initial' // only package third parties that are initially dependent
          //       },
          //       elementUI: {
          //         name: 'chunk-elementUI', // split elementUI into a single package
          //         priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
          //         test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
          //       },
          //       commons: {
          //         name: 'chunk-commons',
          //         test: resolve('src/components'), // can customize your rules
          //         minChunks: 3, //  minimum common number
          //         priority: 5,
          //         reuseExistingChunk: true
          //       }
          //     }
          //   })
          // // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
          // config.optimization.runtimeChunk('single')
        }
      )
  }
}
